As I'm a bit of a control freak and keep track of all my spending, note it in an app and compare it with the credit card, I'd be interested to know how this works -- Do I get text messages (from what amount?) -- Or push notifications? -- Or do I have to log into an app - with a password...or do I have to log into an app - with a password - and receive SMS messages as before? -- Will I be informed of the current spending and the amount still available? -- Can I also use the credit card as a prepaid card (self-selected low credit limit of CHF 1000) and always with the same reference number? I am grateful for any information that is not in the offer Marco